Clear Filters
Clear Filters

for loop doesn't repeat the operation (Matlab)

2 views (last 30 days)
Dear members
I have a program in which I don't have errors when running it, but it doesn't repeat the operation n=n+1 when the result of for loop is not 0.
I don't know where is the problem with for loop.

Answers (1)

Steven Lord
Steven Lord on 23 Mar 2021
Notice that the first n in the line "n = n+1;" is underlined? If you hover over that variable, you will see a Code Analyzer message that I believe will recommend not changing the value of the loop variable inside the loop. Any changes you make will persist only to the end of that iteration of the loop; when the next iteration starts the loop variable will take on the next value from the vector over which you're iterating.
for k = 1:5
fprintf("First, k is %d.\n", k)
k = k + 10;
fprintf("Next, k is %d.\n", k)
First, k is 1.
Next, k is 11.
First, k is 2.
Next, k is 12.
First, k is 3.
Next, k is 13.
First, k is 4.
Next, k is 14.
First, k is 5.
Next, k is 15.
If you just mean to skip to the next value of n (from 1:iteration) then just eliminate that line.
If you mean to skip (from 1 to 3 at the next iteration, not running the body of the loop for n = 2) then you're going to need to switch to a while loop.
If you want to stop the loop entirely when or if L becomes 0, use break.
  1 Comment
Afluo Raoual
Afluo Raoual on 23 Mar 2021
both if and n are underlined and I don't know how to solve this problem

Sign in to comment.


Find more on Loops and Conditional Statements in Help Center and File Exchange


Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!